Process of making cord-passages in candlesticks.



A. J. SANFORD.

IHOCESS 0F MAKING CORD PASSAGES 1N IANDLESTICKS.l

APPLlcATlnu FILED JUNE 24. 1913.

1,272,862., Patented July 16, 19m

2 SHEETS-SHEET l..

Alina-avv A.1. SANFORD.

PRQCESS 0F MAKING CORD PASSAGES IN CANDLESTICKS.

` APPLICATION FILED JUNE 24. 1913. 1,272,862. Patent-ed Ju1y16,1918.

2 SHEETS-SHEET 2.

WITNESSES. K INVENTO,

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ANDREW J'. SANFORD. 0F NEWARK, OHIO, ASSIGNOR TO A. H. HEISEY & CO., OF i NEWARK, OHIO, A GOPARTNERSIIP.

PROCESS OF MAKING CORD-PASSAGES IN CANDLESTICKS.

Application filed Jnne 24, 1913.

To all Iwlw/n, t may concern:

Be it known that I, ANDREW J. SANFORD,

a citizenof the United States, and resident of Newark, in the county of Licking and State of Ohio, have invented a new and useful Improvement in Processes of Making Cord-Passages in Candlesticks; and l -do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the manufacture of glass articles and is particularly conce1-ned with improved processes and methods of manufacture, for the production of glass articles suclnfor example, as a candlestick having formed therein a longitudinal passage for the reception of electrical conductors and the formation of a lateral passage in the side Wall of the candlestick communicating with said longitudinal passage whereby electrical conductors may be introduced through said lateral passage into and through said longitudinal passage. The objects of the invention are to secure economy of manufacture, reducing the number of operations necessary to produce the article of the kind described and to produce a candlestick which may be employed as the standard of an electric lamp, having an ornamental appearance.

In the accompanying drawings which illustrate an embodimentof the apparatus by which the improved process may be carried out, Figure 1 is a longitudinal vertical section through the apparatus on the line.

1-1 Fig. 3; Fig. 2 is a view similar to Fig.

1 showing the parts in different operative position; Fig. 3 is a plan view of the apparat-us with the top font and plunger mechanism removed; and Fig. 4 is a longitudinal sectional view of the completed article.

Referring to .Figs 1 to 3, inclusive, the mold proper consists preferably of two longitudinal sections 1 and 2 hinged-together by a hinge pintle 3 passing through suitable lugs 4 and 5. rlhe opposite sides of the mold sections may be securely `fastened together by means lof a pintle or pin 6 passing through lugs 7 and 8, thus forming when the mold sections are together the mold cavity proper 9. The mold sections 1 and.2 are supported upon a suitable base or bottcm plate 10 which is provided with a cup- .shaped recess 11 registering with the lower open end of the mold cavity. The base plate 10 may be supported by a standard 12 :from

Specification of Letters Patent.

Patenten .any re, rare.

Serial No. 775,604.

' moving the draw bar to the right, as viewed in Figs. 1 and 2, the plunger 14 may be withdrawn from moldclosing position shown in Fig. 1 to the depressed position shown in Fig. 2 for the purpose hereinafter described. Mounted upon the upper ends of the mold sections 1 and 2 is a top font 19 which may be also formed in sections similar to the mold sections and secured together in substantially the same way. The sections of the top font are provided with the annular shoulders 20 adapted to engage the annular shoulders 21 at the top of the mold sections whereby the top font and mold sections may be securely fastened together. The top font4 within the body of the Candlestick while still l within the mold .and also to extend this passage to the outer surface of the Candlestick one of the mold sections, as 2 for example, is provided with a valve plunger 25 slidably mounted as here shown, for example, in the base forming portion of the mold section 2. Said valve plunger is provided with an annular passage 26, which when the plunger is withdrawn somewhat from the mold cavity opens communication between the air inlet pipe 27 and the interior of the mold cavity. To actuate the valve plunger the latter is slotted as at 28 to receive atransversely operating' valve actuating draw bar 29 (see Fig. 3), this bar having therein a cam slot 30 engaged by a pin 31 mounted in the slotted end of the valve plunger. rlhe air inlet pipe 27 may be provided with a control cock 27 a.

in the operation of the device and with the parts in the lposition indicated in Fig. 1 the mold cavity 9 is charged with glass and the plunger 24 is brought down to press .the glass and spread the same thoroughly into the parts of the mold. The stop plun- -ger 14 is then withdrawn from the bottom of the mold cavity by ineans of the draw bar 16 and depressed to the bottom of the cup-shaped recess 11 in the base plate 10. The valve plunger is then withdrawn to the position shown in Fig. 2 whereby the necessary blast of air is introduced through `the lateral opening 32 formed in the side' wall of the candlestick by the valve plun er,

said air blast forcing the softer molten g ass at the longitudinal center of the Candlestick downwardly and into the cavity 11 of the base plate inthe form of a bubble 33, thereby forming through the center of the candlestick a passage 34. The mold sections are then opened and the article removed. The

surplus glass at either end of the formed article is cracked ofi' and the article finished by polishing or` grinding as desired. The mold may be constructed to simultaneously form a threaded boss 35 at the top ofthe having the conductor passages formed there-Y -in in a manner to permit of v'eady and convenient insertion of.electric conductors and to present an ornamental appearance.`

While I have herein described the particular embodiment of the.- invention, it is to be understood that the Same may be altered in details and in the relative arrangement of `parts within the Vscope ofI the appended claims: v A

What I claim is: 1.'The method of manufacture of glass articles which consists in casting the article.`

in solid form in a mold and simultaneously forming a passage through one side thereof and th'en continuing said passage by blowing operation longitudinally of the article and out through one end thereof while still in the mold.

2. The process of manufacturing a candlestick with a conductor passage therein which consists in casting said Candlestick insolid form within a mold and around a blower head projecting into the mold cavity to form a lateral passage throutgh one side of the Candlestick and therea ter continuing the passage longitudinally through saidcandlestick to and through the top thereof by a blast of air from said blower.

3. The process of manufacturing candlesticks having conductor passages therein which consists in casting the Candlestick in solid form within a nold and around a blower head to form a lateral passage through o'ne side thereof, withdrawing a portion of the mold from the top of the fcan- Adlesitick, then withdrawing said blower head and continuing said passage longitudinally through the candlestick and out through the upper end thereof by a blast of air from said blower head.

'In testimony whereof I, the said ANDREW J. SANFORD, 4have hereunto set my hand.

` ANDREW -J SANFORD. Witnesses: l

MAX B. Nonrnm., GEORGE A. BLOOD. 

